CaratHunter
Plans
Heart|Natural|GIA

0.64ct I SI1 Heart Natural Diamond

GD • I/SI1 • GIA 2536877635

Certificate GIA 2536877635

Diamond specifications and retailer prices

From €372 EUR
$417 USD
As of November 2, 2026
Save €116 EUR (24%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: €488 EUR at Blue Nile · As of October 31, 2026
View at Blue Nile

About this 0.64ct natural heart diamond

This 0.64ct natural heart sits in the half to three-quarter carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2536877635. Listed at 4 retailers as of October 31, 2026, with prices from €372 to €488, a €116 spread on the same certified stone. Blue Nile lists it at €488. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.64
Carat
I
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2536877635
Dimensions5.16 × 6.10 × 3.39 mm
L/W Ratio1.18
Top View
5.16 mm6.10 mm0.64 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2536877635
Side View
Table 61.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 55.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: €488 EUR|Low: €348 EUR|High: €572 EUR|Avg: €445 EUR|-14.8%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
November 2, 2026
Retailer 3€372 EUR
Retailer 4€402 EUR
Retailer 2€464 EUR
Blue Nile€488 EUR

40 data points across 4 retailers

4 retailers€372 EUR to €488 EUR

B+
Cheapest Retailer
-
€372 EUR
$417 USD
Final sale: no returns
A
Retailer 2
-
€402 EUR
SGD 610 SGD
View
B+
Retailer 3
-
€464 EUR
£410 GBP
View
Most Expensive
B+
Blue Nile
27287989 · Oct 31
€488 EUR
$547 USD
View
3 more retailers have this diamond
Prices start from €372 EURSave up to €116 EUR

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
0.64ct Heart
€372 EUR